Frequency up-conversion luminescence in Yb3+-Ho3+ co-doped PbxCd1-xF2 nano-crystals precipitated transparent oxyfluoride glass-ceramics

被引：26

作者：

Qiu, JB ^{[1
]}

Makishima, A ^{[1
]}

机构：

[1] Japan Adv Inst Sci & Technol, Ctr Nano Mat & Technol, Tatsunokuchi, Ishikawa 9231292, Japan

来源：

SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS | 2004年 / 5卷 / 03期

关键词：

up-conversion luminescence; rare-earth; oxyfluoride; glass-ceramics;

D O I：

10.1016/j.stam.2003.11.008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Oxyfluoride glasses were developed with composition 30SiO(2).15AlO(1.5).28PbF(2).22CdF(2).(4.9 - x)GdF3.0.1HoF(3).xYbF(3) (x = 0, 0.1, 0.2, 0.5, 1, 2, 3, and 4) in mol%. Powder X-ray diffraction analysis revealed that the heat-treatments of the oxyfluoride glasses at the first crystallization temperature cause the precipitation of Yb3+-Ho3+ co-doped fluorite-type nano-crystals of about 17.8 nm in diameter in the glass matrix. These transparent glass-ceramics exhibited very strong green up-conversion luminescence due to the Ho3+: (F-5(4), S-5(2)) --> I-5(8) transition under 980 nm excitation. The intensity of the green up-conversion luminescence in the glass-ceramics was much stronger than that in the precursor oxyfluoride glass. The reasons for the highly efficient Ho3+ up-conversion luminescence in the oxyfluoride glass-ceramics are discussed. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：313 / 317

页数：5

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